The excitement of investing in a company that can reverse its fortunes is a big draw for some speculators, so even companies that have no revenue, no profit, and a record of falling short, can manage to find investors. But as Peter Lynch said in One Up On Wall Street, 'Long shots almost never pay off.' Loss making companies can act like a sponge for capital - so investors should be cautious that they're not throwing good money after bad.

So if this idea of high risk and high reward doesn't suit, you might be more interested in profitable, growing companies, like Semler Scientific (NASDAQ:SMLR). While this doesn't necessarily speak to whether it's undervalued, the profitability of the business is enough to warrant some appreciation - especially if its growing.

Check out our latest analysis for Semler Scientific

How Fast Is Semler Scientific Growing?

The market is a voting machine in the short term, but a weighing machine in the long term, so you'd expect share price to follow earnings per share (EPS) outcomes eventually. So it makes sense that experienced investors pay close attention to company EPS when undertaking investment research. It certainly is nice to see that Semler Scientific has managed to grow EPS by 19% per year over three years. If the company can sustain that sort of growth, we'd expect shareholders to come away satisfied.

It's often helpful to take a look at earnings before interest and tax (EBIT) margins, as well as revenue growth, to get another take on the quality of the company's growth. The good news is that Semler Scientific is growing revenues, and EBIT margins improved by 7.7 percentage points to 36%, over the last year. Ticking those two boxes is a good sign of growth, in our book.

You can take a look at the company's revenue and earnings growth trend, in the chart below. For finer detail, click on the image.

While it's always good to see growing profits, you should always remember that a weak balance sheet could come back to bite. So check Semler Scientific's balance sheet strength, before getting too excited.

Are Semler Scientific Insiders Aligned With All Shareholders?

It should give investors a sense of security owning shares in a company if insiders also own shares, creating a close alignment their interests. Semler Scientific followers will find comfort in knowing that insiders have a significant amount of capital that aligns their best interests with the wider shareholder group. Holding US$67m worth of stock in the company is no laughing matter and insiders will be committed in delivering the best outcomes for shareholders. At 22% of the company, the co-investment by insiders fosters confidence that management will make long-term focussed decisions.